Application Layer: DNS, HTTP, SMTP, FTP: GATE CS previous year questions (Computer Networks)

Hide the 3 questions not in the current syllabus

GATE CS 2026 Set 1MSQ1 markEasy (estimate)
GATE CS 2026 Set 1, Q.19
Which of the following statements is/are true with respect to the interaction of a web browser with a web server using HTTP 1.1?
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2026 Set 2MCQ1 markEasy (estimate)
GATE CS 2026 Set 2, Q.22
Which one of the following protocols may need to broadcast some of its messages?
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2024 Set 1MCQ1 markEasy (estimate)
GATE CS 2024 Set 1, Q.16
A user starts browsing a webpage hosted at a remote server. The browser opens a single TCP connection to fetch the entire webpage from the server. The webpage consists of a top-...
Application Layer: DNS, HTTP, SMTP, FTP · Transport Layer: UDP, TCP Flow and Congestion Control, Sockets
GATE CS 2023MSQ2 marksHard (estimate)
GATE CS 2023, Q.52
Suppose in a web browser, you click on the www.gate-2023.in URL. The browser cache is empty. The IP address for this URL is not cached in your local host, so a DNS lookup is tri...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2022NAT1 markEasy (estimate)
GATE CS 2022, Q.35
Consider the resolution of the domain name www.gate.org.in by a DNS resolver. Assume that no resource records are cached anywhere across the DNS servers and that iterative query...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2020NAT1 markEasy (estimate)
GATE CS 2020, Q.35 (CS Q.25)
Assume that you have made a request for a web page through your web browser to a web server. Initially the browser cache is empty. Further, the browser is configured to send HTT...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2019MCQ1 markEasy (estimate)
GATE CS 2019, Q.26 (CS Q.16)
Which of the following protocol pairs can be used to send and retrieve e-mails (in that order)?
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2019NAT2 marksEasy (estimate)
GATE CS 2019, Q.64 (CS Q.54)
In an RSA cryptosystem, the value of the public modulus parameter $n$ is 3007. If it is also known that $ϕ (n) = 2880$ , where $ϕ ()$ denotes Euler's Totient Function, then t...
Application Layer: DNS, HTTP, SMTP, FTP · Sets, Relations, Functions, Partial Orders and Lattices
GATE CS 2017 Set 1MCQ1 markMedium (estimate)
GATE CS 2017 Set 1, Q.15 (CS Q.15)
A sender S sends a message $m$ to receiver R, which is digitally signed by S with its private key. In this scenario, one or more of the following security violations can take pl...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2017 Set 1NAT2 marksEasy (estimate)
GATE CS 2017 Set 1, Q.44 (CS Q.44)
In a RSA cryptosystem, a participant A uses two prime numbers $p = 13$ and $q = 17$ to generate her public and private keys. If the public key of A is 35, then the private key o...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2016 Set 1MCQ1 markEasy (estimate)
GATE CS 2016 Set 1, Q.34 (CS Q.24)
Which one of the following protocols is NOT used to resolve one form of address to another one?
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2016 Set 1MCQ1 markMedium (estimate)
GATE CS 2016 Set 1, Q.35 (CS Q.25)
Which of the following is/are example(s) of stateful application layer protocols? (i) HTTP (ii) FTP (iii) TCP (iv) POP3
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2016 Set 1MCQ2 marksEasy (estimate)
GATE CS 2016 Set 1, Q.62 (CS Q.52)
Consider that $B$ wants to send a message $m$ that is digitally signed to $A$ . Let the pair of private and public keys for $A$ and $B$ be denoted by $K_{x}^{-}$ and $K_{x}^{+}$ for…
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2016 Set 2MCQ1 markEasy (estimate)
GATE CS 2016 Set 2, Q.33 (CS Q.23)
Anarkali digitally signs a message and sends it to Salim. Verification of the signature by Salim requires
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2016 Set 2MCQ1 markEasy (estimate)
GATE CS 2016 Set 2, Q.35 (CS Q.25)
Identify the correct sequence in which the following packets are transmitted on the network by a host when a browser requests a webpage from a remote server, assuming that the h...
Application Layer: DNS, HTTP, SMTP, FTP · Transport Layer: UDP, TCP Flow and Congestion Control, Sockets
GATE CS 2015 Set 1MCQ1 markEasy (estimate)Not in current syllabus
GATE CS 2015 Set 1, Q.25 (CS Q.15)
Which of the following statements is/are FALSE? I. XML overcomes the limitations in HTML to support a structured way of organizing content. II. XML specification is not case sen...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2015 Set 1MCQ1 markEasy (estimate)
GATE CS 2015 Set 1, Q.27 (CS Q.17)
In one of the pairs of protocols given below, both the protocols can use multiple TCP connections between the same client and the server. Which one is that?
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2015 Set 1MCQ1 markEasy (estimate)
GATE CS 2015 Set 1, Q.31 (CS Q.21)
Suppose that everyone in a group of $N$ people wants to communicate secretly with the $N - 1$ others using symmetric key cryptographic system. The communication between any two pe...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2015 Set 2MCQ1 markEasy (estimate)
GATE CS 2015 Set 2, Q.23 (CS Q.13)
Which one of the following statements is NOT correct about HTTP cookies?
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2015 Set 2MCQ1 markEasy (estimate)
GATE CS 2015 Set 2, Q.30 (CS Q.20)
Identify the correct order in which a server process must invoke the function calls accept, bind, listen, and recv according to UNIX socket API
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2015 Set 3MCQ1 markMedium (estimate)Not in current syllabus
GATE CS 2015 Set 3, Q.18 (CS Q.8)
In a web server, ten WebPages are stored with the URLs of the form http://www.yourname.com/var.html; where, var is a different number from 1 to 10 for each Webpage. Suppose,...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2014 Set 1MCQ1 markEasy (estimate)
GATE CS 2014 Set 1, Q.34 (CS Q.24)
Which of the following are used to generate a message digest by the network security protocols? (P) RSA (Q) SHA-1 (R) DES (S) MD5
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2014 Set 1MCQ1 markEasy (estimate)
GATE CS 2014 Set 1, Q.35 (CS Q.25)
Identify the correct order in which the following actions take place in an interaction between a web browser and a web server. 1. The web browser requests a webpage using HTTP....
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2014 Set 2MCQ2 marksEasy (estimate)
GATE CS 2014 Set 2, Q.38 (CS Q.28)
A graphical HTML browser resident at a network client machine Q accesses a static HTML webpage from a HTTP server S. The static HTML page has exactly one static embedded image w...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2013MCQ1 markEasy (estimate)
GATE CS 2013, Q.13 (CS Q.13)
Using public key cryptography, X adds a digital signature $σ$ to message $M$ , encrypts $⟨ M, σ ⟩$ , and sends it to Y, where it is decrypted. Which one of t...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2012MCQ1 markEasy (estimate)
GATE CS 2012, Q.22 (CS Q.22)
Which of the following transport layer protocols is used to support electronic mail?
Application Layer: DNS, HTTP, SMTP, FTP · Transport Layer: UDP, TCP Flow and Congestion Control, Sockets
GATE CS 2011MCQ1 markEasy (estimate)
GATE CS 2011, Q.2 (CS Q.2)
A layer-4 firewall (a device that can look at all protocol headers up to the transport layer) CANNOT
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2011MCQ1 markEasy (estimate)
GATE CS 2011, Q.4 (CS Q.4)
Consider different activities related to email. $m_{1}$ : Send an email from a mail client to a mail server $m_{2}$ : Download an email from mailbox server to a mail client $m_{3}$ : Che...
Application Layer: DNS, HTTP, SMTP, FTP
GATE CS 2011MCQ1 markEasy (estimate)Not in current syllabus
GATE CS 2011, Q.9 (CS Q.9)
HTML (HyperText Markup Language) has language elements which permit certain actions other than describing the structure of the web document. Which one of the following actions i...
Application Layer: DNS, HTTP, SMTP, FTP

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